Priebus told Greta Van Susteren on the Fox News Channel Tuesday night that Walker will have a “very prominent” role during the convention in Tampa, Fld., later this month. Priebus says the committee is working with the Mitt Romney campaign on the convention speaking schedule.

Walker has built a national reputation in the party. His widespread support outside Wisconsin helped him raise more than $30 million in the face of a recall organized by those angered over his push to end collective bargaining for most state public employees. Republicans say Walker’s victory in June affirms his efforts to rein in government spending.